This has been a headache of mine for the last few months too (and will probably continue to be)! The traditional wedding march is sooo not me. One of my top contenders is the orchestral version of “Passion” by Utada Hikaru: http://www.youtube.com/watch?v=50i0_Lk7bH0

It has always been one of my favorite songs and was the first one I thought of when I knew engagement was coming! Just think about what you like and go from there, you will find something.